# coding=utf-8
import time
from datetime import datetime, timedelta

from flask import current_app, jsonify
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for

from info import constants, db
from info import user_login_data
from info.models import User, News, Category
from info.utils.image_storage import storage
from info.utils.response_code import RET
from . import admin_blue


# 新闻分类
@admin_blue.route('/news_type', methods=['GET', 'POST'])
def news_type():
    if request.method == 'GET':
        categories = Category.query.all()
        category_dict_li =[]
        for category in categories:
            category_dict_li.append(category.to_dict())
        data = {
            "categories": category_dict_li
        }
        return render_template('admin/news_type.html', data=data)

    # POST请求 # 新增或者修改分类
    category_id = request.json.get('id')
    category_name = request.json.get('name')
    if not category_name:
        return jsonify(errno=RET.PARAMERR, errmsg='参数不全')

    if category_id:
        try:
            category = Category.query.get(category_id)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.DBERR, errmsg='查询分类信息失败')
        if not category:
            return jsonify(errno=RET.NODATA, errmsg='没有分类数据')
        category.name = category_name
    else:
        category = Category()
        category.name = category_name
        db.session.add(category)
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg='保存到数据库失败')
    return jsonify(errno=RET.OK, errmsg='ok')


# 新闻编辑详情
@admin_blue.route('/news_edit_detail', methods=['GET', 'POST'])
def news_edit_detail():
    if request.method == 'GET':
        news_id = request.args.get('news_id')
        if not news_id:
            return render_template('admin/news_edit_detail.html',data={'errmsg':'未查询到数据'})

        news = None
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)
        if not news:
            return render_template('admin/news_edit_detail.html',data={'errmsg':'未查询到数据'})

        # 查询分类的数据
        categories = Category.query.all()
        categories_li = []
        for category in categories:
            c_dict = category.to_dict()
            c_dict["is_selected"] = False
            if category.id == news.category_id:
                c_dict["is_selected"] = True
            categories_li.append(c_dict)

        categories_li.pop(0)
        data = {
            "news": news.to_dict(),
            "categories": categories_li
        }
        return render_template('admin/news_edit_detail.html', data=data)

    # POST请求  json?
    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")

    # 完整性
    if not all([news_id,title,digest,content,index_image, category_id]):
        return jsonify(errno=RET.PARAMERR,errmsg='参数不全')

    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
    if not news:
        return jsonify(errno=RET.DBERR, errmsg='未查询到此新闻')

    # 图片的处理
    if index_image:
        try:
            index_image_data = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.DATAERR, errmsg='读取图片失败')

        try:
            key = storage(index_image_data)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg='上传图片失败')

        news.index_image_url = constants.QINIU_DOMIN_PREFIX + key

    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id

    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")
    # 5. 返回结果
    return jsonify(errno=RET.OK, errmsg="编辑成功")


# 新闻编辑页面
@admin_blue.route('/news_edit', methods=['GET', 'POST'])
def news_edit():

    # 分页
    p = request.args.get('p', 1)
    keywords = request.args.get('keywords','')
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1

    news_model_li = []
    current_page = 1
    total_page = 1
    try:
        filter = []
        if keywords:
            filter.append(News.title.contains(keywords))
        paginates = News.query.filter(*filter).\
            order_by(News.create_time.desc()).paginate(p,constants.ADMIN_NEWS_PAGE_MAX_COUNT,False)

        news_model_li = paginates.items
        current_page = paginates.page
        total_page = paginates.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []
    for news in news_model_li:
        news_dict_li.append(news.to_basic_dict())

    data = {
        "news_list":news_dict_li,
        "current_page":current_page,
        "total_page":total_page
    }

    return render_template('admin/news_edit.html',data=data)


# 新闻审核页面
@admin_blue.route('/news_review_detail', methods=['GET', 'POST'])
def news_review_detail():
    if request.method == 'GET':
        news_id = request.args.get('news_id')
        if not news_id:
            return render_template('admin/news_review_detail.html', data={"errmsg":"未查询到此新闻"})

        # 通过id查询新闻
        news = None
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)

        if not news:
            return render_template('admin/news_review_detail.html', data={"errmsg":"未查询到此新闻"})

        data = {"news":news.to_dict()}

        return render_template('admin/news_review_detail.html', data=data)

    # 获取参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")

    if not all([news_id, action]):
        return jsonify(errno=RET.PARAMERR, errmsg='参数不全')

    if action not in ("reject", "accept"):
        return jsonify(errno=RET.PARAMERR, errmsg='参数不全')
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return jsonify(errno=RET.DATAERR, errmsg='查询新闻失败')

    if action == 'accept':
        news.status = 0
    else:
        reason = request.json.get('reason')
        if not reason:
            return jsonify(errno=RET.PARAMERR, errmsg='参数错误')

        news.reason = reason
        news.status = -1

    try:
        db.session.commit()
    except Exception as e:
        db.session.rollback()
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmag='保存到数据库失败')

    return jsonify(errno=RET.OK, errmsg='操作成功')


@admin_blue.route('/news_review')
def news_review():
    p = request.args.get('p', 1)

    # 搜索关键字
    keywords = request.args.get('keywords', '')

    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1

    # 设置变量默认值
    news_model_list = []
    current_page = 1
    total_page = 1

    try:
        filter = [News.status != 0]
        if keywords:
            filter.append(News.title.contains(keywords))

        paginates = News.query.filter(*filter).\
            order_by(News.create_time.desc()).\
            paginate(p, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_model_list = paginates.items
        current_page = paginates.page
        total_page = paginates.pages

    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []
    for news in news_model_list:
        news_dict_li.append(news.to_review_dict())
    data = {
        "news_list": news_dict_li,
        "current_page":current_page,
        "total_page":total_page
    }

    return render_template('admin/news_review.html', data=data)


# 用户列表
@admin_blue.route('/user_list')
def user_list():
    page = request.args.get('p', 1)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    # 设置变量默认值
    users = []
    current_page = 1
    total_page = 1

    # 查询数据
    try:
        paginates = User.query.filter(User.is_admin == False).order_by(User.last_login.desc()).paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT,False)
        users = paginates.items
        current_page = paginates.page
        total_page = paginates.pages
    except Exception as e:
        current_app.logger.error(e)

    users_dict_li = []
    for user in users:
        users_dict_li.append(user.to_admin_dict())

    data = {
        "current_page": current_page,
        "total_page" : total_page,
        "users":users_dict_li
    }
    # 返回数据
    return render_template('admin/user_list.html', data=data)


@admin_blue.route('/user_count')
def user_count():

    # 查询总用户数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)

    mon_count = 0
    t = time.localtime()
    begin_mon_date = datetime.strptime(('%d-%02d-01' % (t.tm_year, t.tm_mon)), "%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin == False, User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)
    # 日新增数
    day_count = 0
    begin_day_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)), "%Y-%m-%d")
    try:
        day_count = User.query.filter(User.is_admin == False, User.create_time > begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 拆线图数据

    active_time = []
    active_count = []

    # 取到今天的时间字符串
    today_date_str = ('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday))
    # 转成时间对象
    today_date = datetime.strptime(today_date_str, "%Y-%m-%d")

    for i in range(0, 31):
        # 取到某一天的0点0分
        begin_date = today_date - timedelta(days=i)
        # 取到下一天的0点0分
        end_date = today_date - timedelta(days=(i - 1))
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_date,
                                  User.last_login < end_date).count()
        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))

    # User.query.filter(User.is_admin == False, User.last_login >= 今天0点0分, User.last_login < 今天24点).count()

    # 反转，让最近的一天显示在最后
    active_time.reverse()
    active_count.reverse()
    data = {
        "total_count": total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_time": active_time,
        "active_count" : active_count
    }
    return render_template('admin/user_count.html', data=data)


@admin_blue.route('/index')
@user_login_data
def admin_index():
    user = g.user
    data ={
        'user': user.to_dict() if user else None
    }
    # print(user)
    return render_template('admin/index.html', data=data)


@admin_blue.route('/login', methods=['GET', 'POST'])
def admin_login():
    if request.method == 'GET':
        # 完善如果已登录的管理员用户访问登录页面直接跳转到主页逻辑
        user_id = session.get('user_id', None)
        is_admin = session.get('is_admin', False)
        if user_id and is_admin:
            return redirect(url_for('admin.admin_index'))
        return render_template('admin/login.html')

    username = request.form.get('username')
    password = request.form.get('password')

    if not all([username, password]):
        return render_template('admin/login.html', errmsg='用户名或密码错误')

    # 看用户是不是管理员  查询数据库
    try:
        user = User.query.filter(User.mobile==username, User.is_admin==True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg='数据查询失败')

    if not user or not user.check_passowrd(password):
        return render_template('admin/login.html', errmsg='用户不存在或密码错误')

    if not user.is_admin:
        return render_template('admin/login.html', errmsg='用户权限不足')

    session["user_id"] = user.id
    session["nick_name"] = user.nick_name
    session["mobile"] = user.mobile
    session["is_admin"] = True

    # return render_template('admin/index.html')
    return redirect(url_for('admin.admin_index'))
